Hello, herewith I express my concerns in pushing TLS-authz as an experimental or informal standard (http://tools.ietf.org/wg/tls/draft-housley-tls-authz-extns-07.txt). The patents hold by Red Phone Security (https://datatracker.ietf.org/ipr/833/) would prevent developers of open source software to implent this standard. As a huge amount of servers use open source software (in which the standard would not be integrated), the standard would not get implented in lots of environments. Martin Jürgens _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf